FOR SALE.— A Good Collection of FOREIGN LAND, F^LESHWATER, 

 and MARINE SHELLS. Following genera well rep|Resented, viz.: — 

 Helix, Bulimus, Pupa, Clausilia, Streptaxis, Vitrina, ^^(cJjQphorus, Pupina, 

 Cataulus, Pterocyclos, Alycaens, Indian Unio, Scaphula, iP^cten, Aspergillum, 

 etc. looo species ;i^30 ; sets of 30 sjoecies from 10/6 ; single species according 

 to price list. — MISS LINTER, Arragon Close,-:. Twickenham. 



WANTED, by PURCHASE or EXCHANGE,*^ Limnsea involuta, Hydrobia 

 similis, Zonites excavatus. Vertigo moulinsiana, V. pusilla, and V. angustior. 

 — Address, Rev. C. Greene, Great Barford, St. Neots. 



A GENERAL COLLECTION OF SHELLS FOR SALE.— Foreign Marine, 

 a few Land Shells (Bulimus and Helix), and a valuable lot of Clausilise. 

 Price ;^ 10 los., or some sold in Guinea sets. — Apply to F. M. Hele, Fairlight, 

 Elmgrove Road, Gotham, Bristol. 



TiTlSTN" A TH A institution for natural history, 



j-jo.j.'n j.'ii-ci.a-j-ci. BERLIN, N.W., LUISENPLATZ 6. 



Our stock in SHELLS ^''^i^its a wealth of Forms and Species such as 

 can scarcely be found elsewhere. We would refer, in the first instance, to our 

 Catalogues ; but we also arrange every description of Collections to special order, 

 as for instance for comparative studies in PALEONTOLOGY. 



Price Lists on application. Specimens sent for selection. 



ALBUM OF CONCHOLOGISTS. 



The Editor of the "JOURNAL OF CONCHOLOGY" purposes forming 

 an Album of Conchologists, and would be very glad to receive copies of Photo- 

 graphs, with signature, &c., of those persons willing to co-operate If desired 

 the favor will be reciprocated. The following have recently been added to the 

 Album : — G. W. Mellor and Thos. Rogers. 



Address— J. W. TAYLOR, Sovereign Street, Leeds. 



iDsr 1= E, E DP -A. E, ^A. T I o nsr . 



Monograph of the Land & Freshwater MoUusca 



OF THE BRITISH FAUNA. 



<x>o 



INFORMATION URGENTLY WANTED FOR MONOGRAPH. 



I. — Where did Layard describe Testacella aurigasier? Mr. Layard himself has 



now forgot. 

 2. — Living specimens of Testacella sactiihim wanted. 

 3. — Authentically named specimens of Testacella bisulcaia (living preferred) on loan 



or otherwise. 

 4. — Information about the distribution of Helix cantiana. 



Assistance Desired Immediately— Specimens of Testacellae from any locality. 



Extracts from, or loan of, any work, to which we have not access, having 



reference to Testacellce. 



Co-operation is invited from all Conchologists interested in the above subject. 



Any information or specimens illustrating the LIFE HISTORY — STRUCTURE, 



development, variation, distribution, &c. — will be welcomed and carefully 



acknowledged. Address :—hl\i.. J. W. TAYLOR, Office of the Journal of Co7t- 



chology, Sovereign Street, Leeds. 



